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This paper lays the methodological foundations of an analytical framework that may help shed some new light on the issue of territorial inequalities in the digital economy. It opposes the recent tendency to build up an evolutionary economic geography as an alternative not only to the so-called "New Economic Geography" (namely "geographical mainstream economics") but also to the institutional economic geography. The paper advocates the development of an evolutionary and institutional approach in economic geography, which would be meso-focused. Finally, it presents some insights that highlight the heuristic potential of this approach in reappraising the territorial features of the digital economy.  相似文献   

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This paper presents indirect evidence that absolute purchasing power parity (PPP) may hold in the long-run between Mexico and the U.S., but due to data limitations, the relationship could not be tested directly. Thus it is not clear if absolute PPP holds in the long run between the U.S. and Mexico. Given that relative PPP is a necessary, but not sufficient, condition for absolute PPP to hold, this study tests the relationship between the change in the log of the exchange rate, and the changes in the log of the U.S. producer price index (PPI) and the Mexican PPI. Here, the absence of relative PPP would indicate that absolute PPP could not hold. Given that all the relevant variables in first difference log are stationary, PPP in its relative form holds and OLS can be applied directly in a VAR model setting, viz., treating all variables initially as potentially endogenous. The estimates indicate one-way Granger causality from the percentage change in the exchange rate to the percentage change in the Mexican price level, which is not an implausible result for an emerging nation such as Mexico which imports a significant fraction of (dollar denominated) intermediate products and capital inputs.  相似文献   

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This text combines authors' visits and examinations on the spot of Silicon Valley of U.S.A. and Park of Singapore, after analyzing the Park development experience of U.S.A. and Singapore, elucidates "three culture effects" of Park development in terms of cultural system emphatically, then proposes some suggestions of cultural innovation in the Park of China.  相似文献   

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This study investigates the predictability of 11 industrialized stock returns with emphasis on the role of U.S. returns. Using monthly data spanning 1980:2–2014:12, we show that there exist multiple structural breaks and nonlinearities in the data. Therefore, we employ methods that are capable of accounting for these and at the same time date stamping the periods of causal relationship between the U.S. returns and those of the other countries. First we implement a subsample analysis which relies on the set of models, data set and sample range as in Rapach et al. (J Finance LXVIII(4):1633–1662, 2013). Our results show that while the U.S. returns played a strong predictive role based on the OLS pairwise Granger causality predictive regression and news-diffusion models, its role based on the adaptive elastic net model is weak. Second, we implement our preferred model: a bootstrap rolling window approach using our newly updated data on stock returns for each countries, and find that U.S. stock return has significant predictive ability for all the countries at certain sub-periods. Given these results, it would be misleading to rely on results based on constant-parameter linear models that assume that the relationship between the U.S. returns and those of other industrialized countries are permanent, since the relationship is, in fact, time-varying, and holds only at specific periods.  相似文献   

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We develop a model to analyze migration of highly talented individuals within and into Europe. First, we show that if transferability of human capital is endogenous, i.e., if high migration flows and high human capital transferability are mutually interdependent, Europe might be trapped in a low‐migration equilibrium. Second, we show that high mobility within a Federation is necessary to attract highly talented immigrants into the Federation. We study in how far and in what way the European public policy behind the Bologna and the Lisbon Process can contribute to higher mobility in Europe.  相似文献   

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The changing geographical foci of the geopolitical code of the United States are examined by a content analysis of the presidential State of the Union Speeches between 1988 and 2008, the last year of President Reagan's term through the presidency of George W. Bush. The State of the Union speeches are interpreted as geopolitical discourse within a structural setting, using seven foreign-policy paradigms as an organising framework. The empirical findings illustrate an increase over time in the number of regions and countries mentioned in the speeches. Also, notable differences between administrations in terms of their advocacy of globalist or regionalist policies and emphasis upon allies or adversaries are found.  相似文献   

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The claim that the Darwinian paradigm of blind-variation-and-selective-retention can be generalized from the biological to the socio-cultural realm has often been questioned because of the critical role played by human purposeful design in the process of cultural evolution. In light of the issue of how human purposes and evolutionary forces interact in socio-economic processes the paper examines F.A. Hayek’s arguments on the “extended order” of the market (capitalism), in particular with regard to their policy implications. Its focus is on the tension that exists in Hayek’s work between a rational liberal and an agnostic evolutionary perspective. A re-construction of his arguments is suggested that allows for a reconciliation of these seemingly contradictory views.  相似文献   

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Objective:

Evaluate the cost-effectiveness of primary vs secondary prophylaxis (PP vs SP) with pegfilgrastim to reduce the risk of febrile neutropenia (FN) in Non-Hodgkin’s Lymphoma (NHL) patients receiving myelosuppressive chemotherapy from a US payer perspective.

Methods:

A Markov model was used to compare PP vs SP with pegfilgrastim in a cohort of patients receiving six cycles of cyclophosphamide, vincristine, doxorubicin, and prednisone (CHOP) or CHOP plus rituximab (CHOP-R) chemotherapy. Model inputs, including efficacy of pegfilgrastim in reducing risk of FN and costs, were estimated from publicly available sources and peer-reviewed publications. Incremental cost-effectiveness was evaluated in terms of net cost per life-year saved (LYS), per quality-adjusted life-year (QALY) gained, and per FN event avoided over a lifetime horizon. Deterministic and probabilistic analyses were performed to assess sensitivity and robustness of results.

Results:

Lifetime costs for PP were $5000 greater than for SP; however, PP was associated with fewer FN events and more LYs and QALYs gained vs SP. Incremental cost-effectiveness ratios (ICERs) for PP vs SP for CHOP were $13,400 per FN event avoided, $29,500 per QALY gained, and $25,800 per LYS. CHOP-R results were similar ($15,000 per FN event avoided, $33,000 per QALY gained, and $28,900 per LYS). Results were most sensitive to baseline FN risk, cost per FN episode, and odds ratio for reduced relative dose intensity due to prior FN event. PP was cost-effective vs SP in 85% of simulations at a $50,000 per QALY threshold.

Limitations:

In the absence of NHL-specific data, estimates for pegfilgrastim efficacy and relative risk reduction of FN were based on available data for neoadjuvant TAC in patients with breast cancer. Baseline risks of FN for CHOP and CHOP-R were assumed to be equivalent.

Conclusions:

PP with pegfilgrastim is cost-effective compared to SP with pegfilgrastim in NHL patients receiving CHOP or CHOP-R.  相似文献   


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This article examines the effects of persistence, asymmetry and the US subprime mortgage crisis on the volatility of the returns and also the price discovery, efficiency and the linkages and causality between the spot and futures volatility by using various classes of the ARCH and GARCH models, and through the Granger’s causality. We have used two indices: one for spot and the other for futures, for the daily data from 12 June 2000 to 30 September 2013 from Nifty stock indices. We have then tested for ARCH effects, and subsequently employed various models of the ARCH and GARCH conditional volatility. The GARCH(1,1) model is found to be significant, and it implies that the returns are not autocorrelated and have ‘short memory’. It supports the hypothesis of the efficiency of the markets. The negative ‘news’ has more significant effect on volatility, corroborating the ‘leverage impact’ in finance on market volatility. We have also tested the volatility spillover effects. The two methods we employed support the spillover effects and the causality is bidirectional. We also have used the dummy variable for the US subprime mortgage financial crisis and found that they are statistically significant. Indian stock market is thus integrated to the world stock markets.  相似文献   

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The U.S. Department of Commerce (DOC) defines targeted dumping as a pattern of significant differences in the prices that importers charge in the U.S. to different purchasers, in different regions, or during different periods. If DOC finds targeted dumping, then it calculates the average dumping margin using zeroing, a practice that increases the calculated dumping duty. This article shows that DOC is using an inappropriate statistical test in targeted dumping investigations. The article also shows that a finding of targeted dumping does not justify the use of zeroing, an inherently flawed methodology that DOC has discarded in cases without targeted dumping.  相似文献   

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We highlight that an increase in the stock of immigrants corresponds with greater numbers of U.S. firms that engage in exporting to foreign markets. Our results are obtained from the estimation of a multi-level mixed effects model. Overall, the effect of immigrants is relatively larger among small- and medium-sized enterprises and is smaller among large-sized enterprises. There are, however, considerable differences, both in the magnitude and in nature of the observed effects of immigrants on manufactured and non-manufactured goods exporters of comparable size categories. Similarly, heterogeneity is found in the effects of immigrants on the numbers of small-, medium-, and large-sized exporters across home country cohorts that are grouped by World Bank income classifications and by broad regional classifications of destination markets. These findings imply that immigration has the potential to alter the profile of domestic firms involved in exporting.  相似文献   

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Pointing to its radical underpinnings in so-called ‘Open Marxism’ and its theory of the state (one that subsumes the state in the capital relation), this article critically scrutinises Peter Burnham's thesis of ‘depoliticisation’ as a dominant accumulation strategy and regime. The article identifies ambiguities around Burnham's depiction of New Labour in power as committed to depoliticisation. It addresses these by drawing a distinction between regime of accumulation and mode of regulation, characterising New Labour's political economy in terms of the latter as a form of depoliticised Keynesianism framed by ‘discretionary constraint’. Contra-Burnham, the article points to the continued efficacy of Keynesian and social democratic political agency in the context of a dialectic of depoliticisation and repoliticisation focused on the role and power of the state. This dialectic is symptomatic of the contested regulation of capitalism around the defence of the value of money, on the one hand, and its broader management and redistribution, on the other.  相似文献   

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This paper contributes to our understanding of the determinants and dynamics of surplus-value using quarterly UK data, 1955–2010, and the Johansen (1988 Johansen, S. 1988. Statistical analysis of cointegrated vectors. Journal of Economic Dynamic and Control, 12: 23154. [Crossref], [Web of Science ®] [Google Scholar], 1991 Johansen, S. 1991. Estimation and hypothesis of cointegration vectors in Gaussian vector autoregressive models. Econometrica, 59: 155180. [Crossref], [Web of Science ®] [Google Scholar]) cointegration and vector error correction model (VECM). A model is introduced to define this Marxian concept, before we explain distribution, paying attention to three forces that are traditionally seen as drivers of power in this struggle: (i) working class militancy; (ii) the size of the ‘reserve army’ of the unemployed; and (iii) political party. Our results demonstrate the ongoing relevance of Marxian economics in providing an alternative, robust and significant explanation of distribution in the post-war UK economy.  相似文献   

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